- #1
Laguna2
- 7
- 0
Hello.
This question has kept me up all night: What mechanism would keep a wheel spinning using as little electrical energy as possible?
Let's say we have a toy car (could be anything that involves a wheel) that is already in motion and moving with a constant velocity. What would you build to keep the wheels spinning at that velocity and uses as little electrical energy as possible? (It must be with electricity)
I have a few ideas but I have no idea which uses the least amount of electricity:
#1
Using a regular motor to spin the wheel
http://www.scooter-tuning.com/variator3.jpg
#2
Using the principal of Walschaerts valve gear using electricity instead of steam.
[PLAIN]http://upload.wikimedia.org/wikipedia/commons/0/08/Walschaerts_motion.gif
#3
This is the tricky one: Using magnetism. Use electromagnets to give the wheel a 'kick' to keep it going. Make current run through the electromagnets at certain points to induce the kick and stop the current when not at that particular point (to save energy).
Which one would require the least amount of electricity? If you can think of any other method that would meet the criteria better please share :)
This question has kept me up all night: What mechanism would keep a wheel spinning using as little electrical energy as possible?
Let's say we have a toy car (could be anything that involves a wheel) that is already in motion and moving with a constant velocity. What would you build to keep the wheels spinning at that velocity and uses as little electrical energy as possible? (It must be with electricity)
I have a few ideas but I have no idea which uses the least amount of electricity:
#1
Using a regular motor to spin the wheel
http://www.scooter-tuning.com/variator3.jpg
#2
Using the principal of Walschaerts valve gear using electricity instead of steam.
[PLAIN]http://upload.wikimedia.org/wikipedia/commons/0/08/Walschaerts_motion.gif
#3
This is the tricky one: Using magnetism. Use electromagnets to give the wheel a 'kick' to keep it going. Make current run through the electromagnets at certain points to induce the kick and stop the current when not at that particular point (to save energy).
Which one would require the least amount of electricity? If you can think of any other method that would meet the criteria better please share :)
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